[Solved] Given this code snippet:TickType_t start = xTaskGetTickCount(); vTaskDelay(10); TickType_t end = xTaskGetTickCount(); TickType_t diff = end - start;What is the expected value of diff? | FreeRTOS

FreeRTOS - RTOS Fundamentals

Given this code snippet:

TickType_t start = xTaskGetTickCount();
vTaskDelay(10);
TickType_t end = xTaskGetTickCount();
TickType_t diff = end - start;

What is the expected value of diff?

A0

B10

C1

DDepends on CPU speed

Step-by-Step Solution

Solution:

Step 1: Understand vTaskDelay effect
vTaskDelay(10) delays the task for 10 tick periods.
Step 2: Calculate tick difference
Tick count increases by 10 during delay, so diff = 10.
Final Answer:
10 -> Option B
Quick Check:
Tick difference after delay = 10 [OK]

Quick Trick: vTaskDelay delays task by given tick count [OK]

Common Mistakes:

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